CVE-2024-30382

Junos OS and Junos OS Evolved: RPD crash when CoS-based forwarding (CBF) policy is configured

Description

An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to send a specific routing update, causing an rpd core due to memory corruption, leading to a Denial of Service (DoS). This issue can only be triggered when the system is configured for CoS-based forwarding (CBF) with a policy map containing a cos-next-hop-map action (see below). This issue affects: Junos OS: * all versions before 20.4R3-S10, * from 21.2 before 21.2R3-S8, * from 21.3 before 21.3R3, * from 21.4 before 21.4R3, * from 22.1 before 22.1R2; Junos OS Evolved: * all versions before 21.2R3-S8-EVO, * from 21.3 before 21.3R3-EVO, * from 21.4 before 21.4R3-EVO, * from 22.1 before 22.1R2-EVO.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S10, 21.3R3, 21.4R3, 22.1R2, 22.2R1, and all subsequent releases. Junos OS Evolved:  21.3R3-EVO, 21.4R3-EVO, 22.1R2-EVO, 22.2R1-EVO, and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue.

Category

8.7
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.31%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS Evolved
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA79174 vendor advisory
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L issue tracking technical description

Frequently Asked Questions

What is the severity of CVE-2024-30382?
CVE-2024-30382 has been scored as a high severity vulnerability.
How to fix CVE-2024-30382?
To fix CVE-2024-30382: The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S10, 21.3R3, 21.4R3, 22.1R2, 22.2R1, and all subsequent releases. Junos OS Evolved:  21.3R3-EVO, 21.4R3-EVO, 22.1R2-EVO, 22.2R1-EVO, and all subsequent releases.
Is CVE-2024-30382 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-30382 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-30382?
CVE-2024-30382 affects Juniper Networks Junos OS, Juniper Networks Junos OS Evolved.
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